/* Copyright 2025 Henrik Otte Sørensen (@henrikottesorensen)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include QMK_KEYBOARD_H

enum LAYER {
  _PC = 0,
  _MAC,
  _FN
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  [_PC] = LAYOUT_all(
      KC_ESC,           KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,      KC_PSCR, KC_SCRL, KC_PAUS,
      KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC,     KC_INS,  KC_HOME, KC_PGUP,     KC_NUM,  KC_PSLS, KC_PAST, KC_PMNS,
      KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,     KC_DEL,  KC_END,  KC_PGDN,     KC_P7,   KC_P8,   KC_P9,   KC_PPLS,
      KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, KC_NUHS, KC_ENT,                                     KC_P4,   KC_P5,   KC_P6,   KC_PEQL,
      KC_LSFT, KC_NUBS, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, KC_BSLS,              KC_UP,                KC_P1,   KC_P2,   KC_P3,   KC_PENT,
      KC_LCTL, KC_LGUI, KC_LALT,                                     KC_SPACE,                  KC_RALT, KC_RGUI, MO(_FN), KC_RCTL,     KC_LEFT, KC_DOWN, KC_RGHT,     KC_P0,            KC_PDOT),
  [_MAC] = LAYOUT_all(
      KC_ESC,           KC_BRID, KC_BRIU, KC_MCTL, KC_WSCH, KC_LPAD, _______, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE, KC_VOLD, KC_VOLU,     KC_PSCR, KC_SCRL, KC_PAUS,
      KC_NUBS, KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC,     KC_INS,  KC_HOME, KC_PGUP,     KC_NUM,  KC_PSLS, KC_PAST, KC_PMNS,
      KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,     KC_DEL,  KC_END,  KC_PGDN,     KC_P7,   KC_P8,   KC_P9,   KC_PPLS,
      KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, KC_NUHS, KC_ENT,                                     KC_P4,   KC_P5,   KC_P6,   KC_PEQL,
      KC_LSFT, KC_GRV,  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, KC_BSLS,              KC_UP,                KC_P1,   KC_P2,   KC_P3,   KC_PENT,
      KC_LCTL, KC_LALT, KC_LGUI,                                     KC_SPACE,                  KC_RGUI, KC_RALT, MO(_FN), KC_RCTL,     KC_LEFT, KC_DOWN, KC_RGHT,     KC_P0,            KC_PDOT),
  [_FN] = LAYOUT_all(
      _______,          KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,      _______, _______, _______,
      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,     _______, _______, KC_VOLU,     _______, _______, _______, _______,
      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, DF(_PC), _______, _______, _______,     _______, KC_MUTE, KC_VOLD,     _______, _______, _______, _______,
      _______, _______, _______, DB_TOGG, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,                                    _______, _______, _______, _______,
      _______, _______, _______, _______, _______, _______, QK_BOOT, _______, DF(_MAC),_______, _______, _______, _______, _______,              KC_MPLY,              _______, _______, _______, _______,
      _______, _______, _______,                                     _______,                   _______, _______, _______, KC_APP,      KC_MPRV, KC_MSTP, KC_MNXT,     _______,          _______)
};

bool process_detected_host_os_user(os_variant_t detected_os) {
  /* If Apple, swap to macOS layer. */
  if (detected_os == OS_MACOS || detected_os == OS_IOS) {
      set_single_default_layer(_MAC);
  }
  else /* Else use PC layer */ {
      set_single_default_layer(_PC);
  }

  return true;
}
